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Chaos Computer Club 1997 February
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1997-02-28
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An item of interest for readers: For $1. 50
busines ses and schools are equipping them -
selves with ~dial -lock", which f ~t s ir~to
the "1~ position on a dial phone, which
eliminates calls except from dial-lock
key holders.(For pushbi~t~on phones, a
steel plate covers the buttons-Ed. )
For every piggy action, there is an equal
and opposite people reac~ ion. Simply lift
the receiver and rap~ dly push the buttons
on the cradle equal to the numbers you
would dial. For example, to dial 936-2323
you would push the b~ttons down( or ~ust
one of them) 9 times, 3 times' 6 times,
etc., about as fast as a watch ticks, with
a second or so between each d~git. Keep
~onnt, cause its easy to lose count. Or,
~,ush the button 10 times, and you cen
-ive the operator the number you want,
wnether its around the co~ner or across
the country. She is well-trained to as-
s~st you most ably. The "d~al-lock ads
are right, the phone bill ~s effectively
reduced, but it doean't sey whose. L.W.,
Houston, Texas .
Dear YIPL,
If any YIPL reader has access to info
on a pig device called a curdler please
publish the description of the resona-
tor tubes. This device is developed
in France [or use on rloters. Basically
it is a tone generator, ~mpllfier, and
a hi-fi type exponential horn tweeter
fitted with resonator tubes. Supposedly
even a hand-held model cen cause ear
dam~ge and brsin hemmorag~ng through
a sort of "sound laser" effect. Come
the revolution sympathet~c stereos can
be turned ageinst the pig. CCS. Yippie!
The Credit Card Computer we reported
to you about is not yet available to
all operators . So ~n some areas, the
old system of simply matching the
4th digit to the letter st~11 works.
I`'e 've also heard that on the '~fest
Coast, the computor is off from 2-4
a.m. for checking, and cred~t card
cal ls dur~ng that time are ass~med
to be valid. The same thing ~s true
in other areas ~ but we don't know the
times. They m~y be the same.
~L
READERS
~ _
Dear Yipl,
Please distribute this little gem of info inmed-
iately- "The National Security Agency monitors
and records every trans-Atlantic telephone call.
Source- Ramparts Aug. '72. Also- "Of course,
all trans-Atlantic and trans-Pacific Telephone
ca~ s to or from the U.S. are tspped. r
I don't know if the NSA would pass info on to
the FBI about phone phreaks, bot its certainly
conceivable that they may.
It seems m is pushing Astrofood to school
kids through a subsidiary, Continental Baking.
I think we need to find out j~st how much ITT
controls. If I get the time I'll go to MLPF£Fs
and check Standard ~ Poars to see if I cen get
the scope of operations of this glant. J.R.,
Atlanta, Ga.
Dear YIPL,
Just a note to g~ve you a few comments on the
August issue(No. 12).
First, the Red Box: you m~ght note that it
is also important to provide a contact and make
the line connections which will gronnd the tip
side of the line when you beep the box. When a
coin is placed in a psy phone, the mechanism
grounds the tip side for about 1 second; this
is what gets you dial tone on a so-called pre-
pay phone. Then, when dealing with the operator
for longer calls, the beeps tell her that you've
paid, but it will look a little funny if the
equiptment doesn't register the dropping of coins
Both are necessary for a realistic simulation.
~ 1ö 1
_"
I ~
FICHT BRtN! NO.13
SEPT.-OCT.72
THE rau r~ INF~R NA,IONA L
PA RT r L INE
(The terms "tip~ and ~ring~(a~so uslesve")
come from the old manual switchboard days and
describe the connections on a cord plug. These
archaic terms are still used taday: the tip
side is the green wire and L1 if things are
hooRed up properly; the ring side of the line
is the red wire and L2.)
Second: ~ have constructed several Blne Boxes
using the Signetics NE 566 IC. I do not recom-
mend it for several reasons: 1. It is designed
to be a voltage-controlled oseillator and is
very good in this role. It is so damned voltage
sensitive that it needs a very stable, rock
solid bettery supply. Even-~;~h a zener regalator
after the bettery, which is getting rather silly,
it is no good because of 2. ~ts temperature sens-
itivity. using mylar caps and metOal-film rOsistors
I got an 8X var~ation between 35 F. and 90 F.,
which means you have to re-tune the tt.1ng all the
time. Finally, diode variations lead to unreal
differences between tones that should be the
same frequency. Best Wishes, T.V., Calif.
~1 1 ~
1~ ~Q
k~p h touch wffl yo~ h~ and fri~─Sl~ ~em
a call lar~t